It is narrated from Sayyiduna Jabir bin Abdullah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Keep hold of your wealth for yourselves and do not ruin it. Whoever gives someone a gift as a lifelong grant ('umra), it belongs to him (the recipient), whether he lives or dies, and to his heirs."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الهبات / 11972